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- ...Senior Software Engineer (iOS Developer) Location: St Louis, Missouri Duration: 12 months Glider: Software Engineer ADVANCED What are your top 3 required technical skills? Advanced level knowledge of native iOS development (Swift/Objective-C/Swift UI)...Senior
RIT Solutions
O Fallon, MO1 day ago - Senior Software Dev Engineers O'Fallon MO (remote FOR NOW but will need to eventually be onsite) We can consider fully remote for a very strong candidate Looking for 2 Senior Software Dev Engineers This is part ofSeniorRemote work
Samprasoft
O Fallon, MO3 days ago - ...Senior Software Engineer O'Fallon, Missouri contract Rate: DOE U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor the currently Job Description Java, Spring, and Spring Boot Required. Everything is developed...SeniorContract work
Staffing the Universe
O Fallon, MO4 days ago $115k - $184k
...Senior Software Engineer Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices...SeniorFull timePart timeWorldwideFlexible hoursMissouri Staffing
O Fallon, MO3 days ago$115k - $184k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer (Testing Focus) Overview •Been the victim of credit card fraud and thought, "Vengeance!" Yeah, we get it. •Want to...SeniorFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 hours agonew$115k - $184k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer - Cloud Platforms Overview: Join our mission-driven team building the future of digital commerce on our rapidly scaling...SeniorFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago$94k - $157k
...greatest potential. Title and Summary Senior Reliability Engineer Overview The BizOps team is... ...CI/CD pipeline for promoting software into higher environments through validation... ...preferred: C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing...RubySeniorFull timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO2 days ago- ...Senior Azure Platform Engineer Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using...Senior
MasterCard
O Fallon, MO13 hours ago - ...Responsible for the analysis, design, development and delivery of software solutions Defines requirements for new applications and... ...with Product owners Understands operational and engineering experience, actively works to improve experience and metrics in...SeniorContract workLocal area
ShiftCode Analytics
O Fallon, MO4 days ago - ...Job Title: Senior Software Engineer Overview: Job Overview Responsible for the analysis, design, development and delivery of software solutions. Define requirements for new applications and customization adhering to MasterCard standards, processes and best...SeniorWork experience placement
MasterCard
O Fallon, MO4 days ago $115k - $184k
...Senior Software Engineering (RPA - Automation Anywhere 360 & C# .NET) Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can...SeniorFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago- ...Job role: Senior Software Engineer- (Azure, M365) Location: O'Fallon Missouri (Local Candidates ONLY or willing to relocate.) Duration: 12 months+ Overview - The overall objective of this engagement is to manage and execute an organizational network analysis...SeniorLocal areaRelocationFlexible hours
- ...Software Engineer I Location: O'Fallon, MO (Local is Preference) Linux operating and scripting Python with API automation- scripting automation for day to day task Cryptography- how the cert works, and managing it Python or Java- understanding how they run...SuggestedLocal area
RIT Solutions
O Fallon, MO2 days ago - ...Software Engineer I, Launch Program 2026 Mastercard works to connect and power a sustainable and inclusive global economy. We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless...SuggestedWork experience placementInternship
MasterCard
O Fallon, MO5 days ago - ...Software Engineer II Location: O'Fallon, Missouri (Main Campus) --- Local Candidates Only!! Duration: End of 2025 Glider: Software Engineer II - (Apache Spark, Airflow, Databricks, AWS, CICD and Coding(Java/Python/Scala); What are your top 3 required technical skills...SuggestedLocal area
RIT Solutions
O Fallon, MO2 days ago - About Us: At *** (*** | Connected World, Connected Experiences), we live the philosophy of connected world and connected experiences. We thrive on change that is powered by the intelligent symphony of technology and humans designing meaningful and sustainable experiences...Senior
Yantran LLC
O Fallon, MO4 days ago $200k - $320k
...governments realize their greatest potential. Title and Summary Sr Principal Software Engineer Overview: Architecture &Technology (A&T) is a team of specialists and senior engineers who reach across Programs and teams across Mastercard. We extend our reach...SeniorFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago$92k - $147k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II - iOS Developer Software Engineer II: Who is Mastercard? Mastercard is a global technology company in the payments...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO13 hours ago- ...Fallon, Missouri who partners with the feature development teams to performance test and tune each release. We are looking for software engineers that are passionate about creating high quality software while keeping performance top of mind. All About You...H1bLocal areaWorldwide
ShiftCode Analytics
O Fallon, MO4 days ago - Job Title: Senior Email Marketing Developer The following information provides an overview of the skills, qualities, and qualifications... ...* Experience with Handlebars, EJS, or other HTML templating engines * Experience with Salesforce Marketing Cloud Engagement (...SeniorFull timeApprenticeshipWork at officeLocal areaFlexible hours
Automotive Product Consultants, LLC
O Fallon, MO1 day ago - ...Summary Seeking an experienced full stack Software Engineer with proficiency in Java and Angular development, to assist the company with ongoing build and support work as well as to prepare and execute a systems migration/integration.This is a full time employee position...SeniorFull timeLocal areaRemote workRelocation
Timeless Technology Solutions
Dardenne Prairie, MO13 hours ago - .... Trojan is also capable of handling almost all of your miscellaneous steel requirements as well, fabricating all manner of stairs, rails, and miscellaneous custom work. Trojan is currently run by Doug Lowrey, President, and Eric Lowrey, Vice President, who took over...RailWeekly payFull timeWork experience placementWork at office
Trojan Iron Works
Saint Peters, MO1 day ago - Agile Project Manager Role Need more resumes!! Agile Project Manager role (not a TPM). For this role the manager would like to see someone out of banking/financial services. Payments experience is just a plus.Senior
Samprasoft
O Fallon, MO1 day ago - ...Java Backend Engineer O'Fallon, MO - Day 1 Onsite Full Time An ideal... ...environments effectively. # Modern Software Design Principles: Deep understanding of... ...teams. This person would fit well into a senior or lead developer role, where they can leverage...Full time
Veracity
O Fallon, MO3 days ago - Sr. Sdet Location: O'Fallon, MO (on site from day1) Full Time Mandatory: API Testing Note Please don't send UI testing profiles Job Description: Key Skills and Experience: Hands on Java/Rest API testing experience Test automation, Ops gating, Integration Testing Rest...SeniorFull time
Veracity
O Fallon, MO1 day ago $85.15k - $153.93k
...Job Description Description The Leidos FS2 Aero team has an opening for an experienced Full Stack Software Developer r to modify existing code and integrate software solutions for the Aeronautical Navigation Office. The ideal candidate has an excellent understanding...Work at officeLeidos
Saint Charles, MO7 days ago- ...Lead Full Stack Engineer Job Location: O'Fallon, MO (Hybrid onsite 3 days/week) Job Travel Location(s): Must be able to travel to office as needed Positions: 1 Employment Type: C2H Duration: Long Term Key Technology: Java, Full Stack, SQL Job Responsibilities: Lead...Work at office3 days per week
Veracity
O Fallon, MO1 day ago $200k - $320k
...greatest potential. Title and Summary Senior Principal Data Architect - Finance... ...cloud environments. • Collaborate with engineering, data, application, and operations teams... ...15+ years of engineering experience in software, data, or related field. • Prior experience...SeniorFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago$138k - $221k
...Title and Summary Lead Data Platform Engineer Overview: Are you an experienced data... ...into the cloud. We are looking for a Senior Cloud Platform Engineer to work on... ...including data scientists, data analysts, and software engineers, to help drive data-driven...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago- ...in Central Florida with the recent additions of the CSX Intermodal Logistics Center, the high speed internet network Florida Lamda Rail, the Advanced Technology Center at Polk State College and near to the state's newest STEM-focused public university, Florida Polytechnic...RailPermanent employmentLive inLocal areaVisa sponsorshipRelocation packageFlexible hours
TNN HealthCare Solutions
Lake Saint Louis, MO2 days ago
